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Spin-orbit coupling and electron spin resonance for interacting electrons in carbon nanotubes

De Martino, A., Egger, R., Murphy-Armando, F. and Hallberg, K. (2004). Spin-orbit coupling and electron spin resonance for interacting electrons in carbon nanotubes. Journal of Physics Condensed Matter, 16(17), S1437-S1452. doi: 10.1088/0953-8984/16/17/002

Abstract

We review the theoretical description of spin-orbit scattering and electron spin resonance in carbon nanotubes. Particular emphasis is laid on the effects of electron-electron interactions. The spin-orbit coupling is derived, and the resulting ESR spectrum is analyzed both using the effective low-energy field theory and numerical studies of finite-size Hubbard chains and two-leg Hubbard ladders. For single-wall tubes, the field theoretical description predicts a double peak spectrum linked to the existence of spin-charge separation. The numerical analysis basically confirms this picture, but also predicts additional features in finite-size samples.

Publication Type: Article
Additional Information: 19 pages, 4 figures,
Subjects: Q Science > QC Physics
Departments: School of Mathematics, Computer Science & Engineering > Mathematics
Related URLs:
URI: http://openaccess.city.ac.uk/id/eprint/1669
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